61324263 has 64 divisors (see below), whose sum is σ = 122035200. Its totient is φ = 29393280.

The previous prime is 61324217. The next prime is 61324283. The reversal of 61324263 is 36242316.

61324263 is a `hidden beast` number, since 613 + 2 + 42 + 6 + 3 = 666.

It is not a de Polignac number, because 61324263 - 2⁹ = 61323751 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61324283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25893 + ... + 28161.

It is an arithmetic number, because the mean of its divisors is an integer number (1906800).

Almost surely, 2^61324263 is an apocalyptic number.

61324263 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

61324263 is a deficient number, since it is larger than the sum of its proper divisors (60710937).

61324263 is a wasteful number, since it uses less digits than its factorization.

61324263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309 (or 2303 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 61324263 is about 7830.9809730327. The cubic root of 61324263 is about 394.3460053293.

Adding to 61324263 its reverse (36242316), we get a palindrome (97566579).

The spelling of 61324263 in words is "sixty-one million, three hundred twenty-four thousand, two hundred sixty-three".